Portable telephone device



FIG. 1 is a front, top and right side perspective view of a portable telephone device including a main unit and a sub unit, showing our new design;

FIG. 2 is a rear, bottom and left side perspective view thereof; and,

FIG. 3 is a front, top and right side perspective view of the portable telephone device in FIG. 1, with a camera extended.

Any portions of the article not shown in the drawing nor described in the specification form no part of the claimed design. 

The ornamental design for a portable telephone device, as shown and described. 